package com.design.principle.compositeAggregate;

/**
 * @program: designPattern
 * @description:
 * @author: STU756
 * @create: 2021-01-19 01:46
 */
public class MyMysqlConnetion extends DBConnetion{
    @Override
    public String getConnnection() {
        return null;
    }
}
